Tacking mechanism.



0. ASHTON.

TACKING MECHANISM.

APPLICATION FILED NOV. 10, 1910.

1,1 37,565. Patented Apr. 27, 1915.

Fig. 6.

Wl/E/VTU UNITED STATES PATENT OFFICE.

OBRELL ASHTON, 0F SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF JERSEY.

Continuation 0 To all whom it may concern:

Be it known that I, ORRELL ASHTON, a citizen of the United States, residing at Swampscott, in the county of Essex and State of Massachusetts, have invented certain Improvements in Tacking Mechanisms, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in'the several figures.

This invention relates to machines for use in the manufacture of boots and shoes and particularly to tacking mechanism.

The invention is herein shown for exemplification as embodied in the tacking mechanism of a machine for working an upper over a last and securing the upper for whichuse the invention has been particularly designed, although many features of the invention are applicable also to tacking and nailing machines for general use.

The present application is a continuation, as to subject-matter common to both of my application Serial No. 527,210, filed November 10, 1909 in which is shown a pullingover machine equipped with devices for working the upper of the toe portion of a turn shoe into lasted position ready for the presentation of the shoe to the sewing machine without intervening operations on the toe of the shoe.

A very important feature of this invention consists in a tack block which is are ranged for automatic movement inwardly over the work during the tack driving operation. The tack block is mounted for bodily swing movement forwardly while the tack is going into the work. By this movement, the direction in which the driving force is applied to the tack is changed during the ingoing movement of the tack whereby the tack, after passing through the upper and entering'the shoe sole, tends to pull the upper still farther inwardly. This arrangement permits the starting of the tack into the work in a direction inclined to the plane of the shoe bottom and provides for straightening up the tack into a position more nearly perpendicular to the plane of the shoe bottom as the driving progresses. The movement of the tack block may be sufficient to bend the tack into a relation to the work in which the tension under which Specification of Letters Patent.

Patented Apr. 27, 1915.

f application Serial No. 527,210, filed November 10, 1909. This application filed November 10, 1910. Serial No. 591,622.

the upper is held by it will insure that the upper slides downwardly on the tack stem instead of sliding upwardly toward the tack head. In practice I have found that by the use of this invention for starting the tack at an inclination to the work and straightening it up as it is being driven,.as above described, a slender tack lightly driven can be caused to hold the upper in pulled over and lasted position where a. heavier tack driven more deeply straight into the shoe in the ordinary way would be required to hold the upper with the same security. There is an obvious advantage in using the light slender tack in that such a tack is less liable to be struck by the needle or awl of the sewing machine and is less likely to break the needle or awl if so struck.

upper holding tacks entirely through the sole for the reason that the sole is in temper and the moisture from the sole acts upon the tack to produce a stain in the leather around the tack which it is objectionable to have appear on the side of the sole which is to be finished. This finished side of the sole of course is the lower side when the turn shoe is being lasted. It is therefore of especial importance in turn shoe work to drive the tacks in a way to hold the upper with the required security without allowing them to go through and leave a s 0t on the grain side of the sole. In the em odiment of the invention herein shown a stop is provided for engagement with the side of the shoe to limit the movement of the tacker over the shOe and locate the tack inserting point on the shoulder or thick portion of the sole where the maximum depth of sole stock is found into which to drive the tack point.

An advantage similar to that described In making turn shoes it is desirable to avoid driving theing operation movement to wipe the upper still farther over the last bottom. Thls wiping movement is coincident with the nuward bending of the tack stem to assist n tightening the upper into the POS1 t1011 1n which the bent tack stem is to hold 1t. For

' thepurpose of forming the upper into loose plaits 'or folds to take care of the fulness at the toe the front ,face of the tack block 1s fluted to present a sinuous wipmg edge. The flutes are arranged symmetrlcally with relation to the tack locations whereby a tack is driven in position to retain the plaited formation of the upper.

A further feature of the invention is found in the construction and arrangement by which the movement-of the tack block for the purposes described is obtained from the driver. The tack block is movably mounted on its carrier and the driver or drivers, there being herein shown three drivers cooperating with three tack pockets in the tack block, are arranged at an angle to the direction of movement of the driver bar and connected to the bar so that they may swing thereon during the tack inserting movement. By this arrangement the drivers, while going through the driver passages in the block, act as levers to move the block on its connection with its support. This connection is shown as a pivot and the direction of movement swings the lower end of the block inwardly.

A further feature of the invention is found in the novel tack holder with which the tack block is provided. The tack holder comprises two members each being somewhat less than a half cylinder in shape. A spring is arranged to maintain said members with two of their longitudinal facesin contact and permit movement of the members about the axis of the cylinder. The faces which are in contact are formed with like recesses tapered at the bottom to constitute the tack pocket and driver passage. As the driver moves in the passage it, and the, tack, cause the members to separate by turning about their common axis to permit the tack to be driven and when the driver is retracted the spring restores them to tack holding position by reverse turning movement. The simplicity and durability of this construction render it a very desirable one. The tack block has merely to be provided with a cylindrical socket to receive the tack holding members and with a driver passage suitably arranged eccentrically with relation to said cylindrical socket. Provision is made for centering the tack holding members with the driver passage therein normally in alinement with the driver passage in the tack block.

These and other features of the invention, mcluding certain combinations of parts and more important details of construction will appear in connection with the following description of the preferred embodiment of the invention and will then be pointed out in the claims.

Figure 1 is a side elevation'of a pullingover machine equipped with this invention. Fig. 2 is a detail side view on an enlarged scale of the tack block, drivers and the lasting and clamping plates; Fig. 3 is a medial section of a portlon of Fig. 2; Figs. 4 and 5 are detail sections illustrating the change of position of the tack block and tack during the inserting operation; Fig. 4 showing the tack just as it is entering the shoulder and Fig. 5 showing the tack fully seated in the shoulder and bent inward to its final po sition. Fig. 6 shows the drivers and their mounting; Fig. 7 is an inverted plan view of the tack block; Fig. 8 is a detail perspec-. tive of the tack block; Fig. 9 is a detail of the tack holding jaws of the tack block and 'Fig. 10 is a detail of the tack jaw centering means.

The machine in its general or anization resembles that shown in United tates Letters Patent No. 1,029,387, granted June 11, 1912, on application of Ronald F. McFeely. A detailed description of the well-known portions of this machine is not required herein but an understanding thereof may be had from said prior specification.

The head of the machine is carried on a pedestal at such a height that the operator may look obliquely upwardly at the shoe being operated upon and that he may have the several levers and other manually operated devices within convenient reach. The head supports a shoe bottom rest against which the shoe is positioned with its bottom and the edges of the upper faced obliquely upwardly and the head contains a cam shaft 5 from which are driven cams that operate the several power operated mechanisms of the machine. The cams 6 and 7 at the rear of the shaft operate respectively the two side grippers one of which is shown at 8, and the toe grippers 10 through yielding connections 11, 12 with the updraw levers 14, 15 from near the front ends of which the grippers are suspended by joints permitting freedom of movement to the grippers. The levers are extended forwardly to provide handles by which the operator can manipulate the grippers to increase or diminish the stretching of the upper or to shift the upper.

The toe gripper lever 15 has, in addition to its handle, a lever 16 connected by a slide 17 with the jaw closing mechanism to enable the operator conveniently to open the jaws of the toe gripper independently of their automatic opening during the operation of the machine. For more specific details of the mechanism above described in general reference may be had to the patent referred to.

The means forming the subject matter of this application, which cooperates with the pulling-over grippers to work the upper over the last bottom in' detail lasted position about the forward portion of the shoe and to secure it in overworked condition, is carried by an arm 60 which is suspended from the upper portion of the head and swings inwardly from the position shown in Fig. 1. This mechanism comprises two sets of devices. The first set includes those devices which are shown in holding engagement with the upper in Fig. 2 and which will be called clamps for the purpose of designation. These devices clamp the upper against the edge of the sole or innersole or, by wiping in just over the edge of the feather of the sole, clamp the upper against the said edge, and hold it with suificient security so that the toe grippers can be released, either manually or automatically, before the' lasting plates 80 are advanced over the shoe end.

The lasting plates which constitute the second set of devices mentioned, together with the toe abutment 82, are connected with the tacker arm 60 for sliding movement thereon so that as said plates and abutment are brought up to the shoe and stopped, the continued movement of the arm 60 is, through suitable connections, utilized to actuate the lasting plates to force the upper over the last bottom into lasted position and ready to be secured. Their effect is to gather in the stock with a fold or plait at each side of the center of the toe tack and a fold or plait, which is not of objectionable size, at the ends of the corner wipers just beyond the corner tacks.

The tacking mechanism to which the present invention relates comprises the tack block carrier 92 detachably held on the arm 60 by the bolt 61 the arm being split and provided with a recess to engage a lug 63 on the tack block carrier 92. For further security the lug is hook shaped to engage the clamping bolt 61. Upon the forward end of the tack block carrier 92 is located the tack block 97 which is made in two sections 96, 98, secured together by screws, not shown. In the part 98 of the tack block are situated the tack holding jaws 100, 101, each of which is a sector of a cylinder less than a half and has therefore two plane longitudinal faces and one curved face. A pair of these jaws is seated in each of three cylindrical recesses in the part 98 in the position shown in inverted plan in Fig. 7. The jaws are held with two of their plane faces normally in contact by a spring 102 the ends of which are seated in recesses in the other plane faces of the jaws as clearly indicated in Fig. 9. In the normally contacting faces of the j aws are opposite grooves 104, pointed at their lower ends, which form, when the faces are in contact, a pocket in which the tack may rest ready for the operation of the driver 50. The driver, upon its descent, forces the tack through the constricted lower portion of the tack pocket formed by the grooves 104 causing the jaws to swing apart about the center of the cylindrical recess, in Which they are seated, as an axis. The separating movement of the tack holding faces of the jaws causes their other plane faces to approach and compress the spring 102. Below the tack pocket of the jaws is a? driver passage 108 in the tack block 98 to permit the passage therethrough of the tack and driver. The tack jaws are centered over the passage 108 by pin 103 (Figs. 3 and 10) seated in holes in the tack block'98 and extending up into recesses 105 in the'tack jaws 100, 101. The recesses 105 are of only sufficient size to permit the movement of each jaw half way over the tack-passage 108, and away from the passage sufliciently to clear it. The spring 102 acts upon both jaws to hold them normally with the tack pocket centered over the passage 108, which is of course located eccentrically with respect to the center of the recess in which the jaws are seated.

The front of the member 98 acts as the middle wiper and is contoured for properly wiping over and folding in the upper as above described, its action taking place after that of the lasting plates 80.

The tack block 97 is pivoted to the tack block carrier 92 on a horizontal axis running transversely of the machine by the pins 110 which pass through lugs on the tack block carrier and engage holes 111 in the member 96. The pins are secured in place by screws 112 passing through the elongated heads of the pins and threaded into the tack block carrier. These parts are shown detached in Fig. 8. For limiting rotation of the tack block and holding it in normai position to receive the drivers a lug 91 is provided on the back side of the tack block which lies in a recess in the track block carrier 92 (Figs. 2 and 3') and is normally held in engagement with the wall ofthe recess by the spring 99. The drivers 50 and tack chutes 52 are normally located in grooves 114 in the member 96 of the tack block 97 the said grooves ending in orifices 115 above the tack pocket in the tack jaws. The relation of these parts is clearly indicated in Fig. 3 where the location of the pivot 110 is shown in dotted lines and the tack block is indicated in its normal or backward position fromawhich it is swung forwardly by the drivers as they descend into and through the pockets. For this purpose the tack pockets and driver passages are inclined and the driver block is pivoted to the driver bar at 49 as shown in Fig 3. The tack chutes 52 are pivoted at 54 and are held inward with their delivery ends normally over the tack recesses in the tack jaws by operated, will the correct plane for wiping the upper firmly spring pressed pins 55. The drivers have heads at their upper ends which are seated in sockets in the plate 51 (Fig. 6). Above the heads of the drivers is a plate 59 secured to the plate 51 by screws to hold the driver heads in their sockets. The plate has ears 53,- 53 which by means of a pm 49 are pivoted to corresponding cars 56, 56 on a yoke 58 fixed to thedriv'er-bar 57 which is operated in the usual manner. The tack block is held normally with its tack pockets at an angle to the direction of the driver bar by a spring 99 seated in a recess in the tack block (Figs. 2 and 8) and bearing against it and the tack block carrier 92. By this arrangement, as the drivers descend their ends enter the driver passages or tack pockets in the tack block, and the inclined walls of the driver passage cause the tack block and the drivers to be tilted forwardly and the tacks to be driven on a slant or inclination. The effect is like that which would be obtained by mounting the driver bar to move in a path inclined downwardly and inwardly at an acute angle to the plane of the shoe bottom and one advantage of the illustrated arrangement is that thenecessity is avoided of building the machine to project far enough forwardly to allow the driver bar to be reciprocated at the described acute angle to the shoe bottom.

There is also the advantage that the tack holder has given to it a forward, swinging, movement'by the drivers which causes it to force the stock inwardly from the edge of the last. This movement of the tack block occurs just subsequent to a movement of the tack block carrier bodily inward so that as the tack is driven it is bent inward and tends for this reason to draw the upper in over the last. These combined movements and their effect upon the tack and upper are clearly indicated in Figs. 4 and 5. When in the operation of the machine the upper has been properly adjusted and pulled, the operator releases the toe grippers and depresses the latch 67 which allows the spring 66 to force forwardly into contact with the shoe, the upper clamping plates or jaws 70. These plates, by reason of their mountings adjust themselves readily to the contour and the lateral position of the toe end of the last. The operator positions them Vertically with relation to the plane of the bottom of the last so that the jaws 70 clamp the upper against the edge of the innersole or, by raising them slightly, so that they clamp. the upper between the feather of the sole and their lower edges. This adjustment of the clamping jaws also effects vertical adjustment of the lasting plates, which, like the jaws, are carried on the plate 62. This insures that the lasting plates, when they are automatically come over the last bottom in into lasted position. The clamping plates having been properly adjusted the op holds the clamping plates firmly against the shoe by the abutment 82 and restarts the machine During the automatic movement which follows the lasting plates are swung corners this action being assisted byits contoured front face. The wipers hold the upper while the toe tacks are inserted from the tack block 97. The other tacks are inserted at the same time from the two side tackers. As the drivers of the toe tacker enter the driver passages in the tack block they swing the tack block forwardly thus giving it a downward and inwardly wiping movement in the direction to wipe the upper over and force it against the shoulder of the sole and the tacks are preferably driven into the sole between the shoulder and the channel and preferably just inside the shoulder as shown in Figs. Land 5. At this point the maximum thickness of the sole is presented and a tack driven through this portion will have sufiicient holding effect to keep the upper in place for sew' g tothe shoulder without {he tack extendi g through the sole into the ast.

Where the tacks are allowed to rick through the sole-into the last a point 0 discoloration is likely to occur about the perforation due to the fact that the soles are in temper that is moist, and the tacks are usually iron. The side of the sole next the last becomes the outside of the shoe'after it is turned and the discolorations will then appear of course on the bottom of the sole. By this invention it is unnecessary that the tacks prick through the sole so that the necessity of blackening the sole or otherwise disguising the discolorations is avoided. Furthermore, as the tack block is turned on its pivot by the drivers as they descend the tacks are started at one angle and during the act of driving the angle of the drivers is changed relatively to the tacks and the tack block is swung upon its pivot so that the tacks are bent inward as they are driven, this action tending to further strain the upper inward and secure it in pulled over position. By reason of this bending inward of ,the head portion of the tack, the upper, when it reacts from the strain placed upon it by the gripper, draws downwardly toward the point of the tack and remains stretched instead of bending the head portion of the tack outward, as it might if the tack were straight, and drawing toward the head of the tack, thus releasing the strain.

erator the corners of the last covered III The fact that the strain of the up er on the tack isbrought, by the bending o the tack, to or close to the plane of the surface of the sole through which the tack enters, enables it to furnish its maximum holding effect.

It will of course be understood that the usual side clamps of this machine serve to uphold the shoe durin the tack driving operation. When the tac' s have been inserted, the parts of the machine resume their normal positions, the latch 67 having automatically reengaged the plate 62 when the tack arm was in its advanced position, and the shoe is released.

Having explained the nature of this invention and described a preferred construction embodying the same, I claim as new and desire to secure by Letters Patent of the United States 1. A machine of the class described, having, in combination, a tack block, a driver, and operating and guiding mechanism for the block and the driver arranged to produce in the tack while it is being driven a bend which is initiated at a point distant from the lower end of the tack.

2. A machine of the class described, having in combination, a driver, a tack block, and automatic means for operating the driver to insert a tack from the tack block into the Work and for moving the block inwardly over the work during the operation of driving the tack into the work.

3. A machine of the class described, having in combination, a driver, and a tack block mounted for swinging movement bodily forward simultaneously with the entrance of the tack into the work under the pressure of said driver.

4:. A machine of the class described having, in combination, a tack block, a driver, and means whereby the tack block is moved during the operation of the driver so that the tacks are bent and the upper drawn over the last.

5. A machine of the class described having, in combination, a pivoted tack block provided with tack pockets, means for feeding tacks to the pockets, and means for oscillating the tack block while the tacks are being driven.

6. In a machine of the class described, a movable tack block, and a driver, said block and driver being so disposed with relation to each other that the block is moved by the passage of the driver therethrough whereby the tacks are bent during the act of driving.

7. A machine of the class described, having in combination, a driver, a movable tack block, and operative connections between said driver and tack block for moving the tack block so that the direction of the force exerted by the driver is changed during the ingoing movement of the tack.

8. A machine of the class described, having in combination, a driver, a tack block, means for moving the tack block over the last edge to wipe in the u per, and operating mechanism to cause t e'driver to insert a tack and to move the tack block to bend the tack inwardly after the tack has entered the work.

9. In a machine of the class described for wiping in and securing an upper held under tension, a tack block, a driver, and means to operate the same, said tack block and said driver being constructed and arranged to cause the driver to effect a movement of the block transversely of the path of the tack to bend the tack after the tack has entered the work.

10. .A machine of the class described, having in combination a driver, a movable tack block, and mechanism for operating the same, said mechanism having provision for moving the tack block transversely of the path of the tack after the tack has begun to enter thework.

11. A machine of the class described, having in combination, a driver, a tack block carrier, and a tack block movably connected therewith and having a tack pocket therein, said pocket being arranged with its longitudinal axis at an angle to the initial direction of the driver.

12. A machine of the class described, having in combination, a jointed driver, a tack block carrier, and a tack block movably connected therewith and having a driver passage at an angle to the initial direction of the driver whereby the driver acts as a lever to move the tack block on its carrier as the driver passes through the tack block.

13. A machine of the class described, having in combination, a driver, a tack block carrier, and a tack block pivoted thereto and having a driver passage at an angle to the initial direction of the driver whereb the driver acts as a lever to oscillate the tack block on the carrier as the driver passes through it.

14. A machine of the class described having, in combination, a tack block carrier movable inwardly over a shoe, a tack block pivoted in said block carrier and provided with holes for drivers, a driver bar movable at an angle to the normal direction of the holes in said block, and drivers'pivoted to said driver bar andadapted to pass through the tack block and to rock the same on its pivot during the act of driving.

15. In a machine of the class described, means for clamping the upper to the last, a tack block carrier movable inwardly over the toe, a tack block pivoted to the carrier, and drivers adapted to oscillate the tack block on its pivot during the act of driving whereby the block acts to wipe in the upper at the toe and to bend the tacks inwardly during the act of driving.

1s. A machine of the class described, having in combination, a driver, a tack block carrier, and a tack block movably connectedv therewith and havin a driver passage at an oblique angle to t c direction of movement of the driver wherebythe driver acts to move the tack block on its carrier as the driver passes through the tack block.

17. A machine of the class described, having in combination, a driver, a'movable tack block, and means for operating said driver and tack block for inserting a tack into the work and for changing'the direction of the ingoing movement of the tack during its insertion whereby the tack, after passing through the upper and entering the shoe sole, tends to pull the upper still further inwardly; ,1

18. A machine of the class described, having in combination, tack driving means and tack guiding means movably mounted and arranged to be operated laterally by the tack driving means during the tack inserting movement to cause the tack, after having been started in a direction inclined to the plane of the shoe bottom, to be straightened up to a position more nearly perpendicular as the driving progresses.

19. A machine of the class described, having in combination, a driver, a movable tack block, means for supplying the block with tacks, and means for moving the tack block over the edge of the last to wipe in' the upper, said movement continuing after the tack has entered the work whereby the head portion of the tack is set at an angle to its point portion and the strain on the upper and the holding effect of the tack are increased.

20. A machine of the class described,having in combination, a driver, a tack block 7 having a sinuous front edge and provided with tack pockets, and means for moving the tack block over the upper, said pockets being arranged in predetermined relation to the sinuosities of the said edge so that the tacks inserted through the pockets will maintain the folds formed in the upper by the sinuous edge of the tack block after it is withdrawn.

21. A machine of the class described, having in combination, a driver, a tack block, means for moving the driver and tack block inwardly over the last, and operative connections between the driver and tack block such that the tack block receives, during the tack inserting operation, a movement to wipe the upper still further over the last bottom.

22. A machine of the class described for driving tacks to secure an upper that is under tension, having in combination, tack driving means and tack guiding means constructed and arranged to cause the tack to be bent against the direction of tension as it is driven so that the tension in which the upper is held by it will insure that thev upper slides downwardly on the tack stem instead of upwardly toward the tack head.

23. A machine of the class described, having in combination, a driver, a tack block, and means for moving the tack block inwardly over the upper, said tack block being fluted on its front face to provide a sinuous wiping edge with the innermost points in said edge adjacent to the driver for the pur ose of forming the upper into plaits or fol ds to take care of the fullness of the toe and maintaining it in position to befastened by said driver.

24. A machine of the class described, having in combination, a jointed driver, a tack block carrier, and a tack block movably con,-

nected With the carrier and having a tack pocket to receive the lower leg of the jointed driver, said pocket being arranged with itslongitudinal axis at an angle to the initial direction of movement of the upper driver leg whereby the tack block is swung on its carrier during the tack inserting movement.

25. In a machine of the class described, a tack block provided with a recess through which a tack driver may operate, tack jaws mounted in said recess to turn on a common axis extending in a general direction substantially arallel to the driver passage and located adjacent to said passage, said jaws being provided with pointed grooves in adjacent opposed faces thereof, and a spring for normally holding the groove faces in contact. a

26. In a machine of the class described, a tack block having a cylindrical recess therein, a pair of jaws seated in said recess and adapted for movement about the axis of said recess, and means for holding two faces of the jaws in contact, said faces being grooved to provide a tack pocket.

27. .In a machine of the class described, a tack block, and a tack holder therein comprising jaws in the form of sectors of cylinders, said sectors having in two adjacent lon itudinal facesv rooves forming a tack pocket when the sai faces are together, and resilient means for holding said faces normally in contact.

28. In a machine of the class'described,

a tack block, a tack holder therein com-- faces with grooves which together form a tack pocket, and means for pressing said faces together. I

masses 29. In a machine of the class described, a driver, a tack block having a cylindrical recess and a driver passa e eccentrically arranged with respect to t e am's of said recess, jaws in the form of sectors of a cyl-- inder seated in said recess and constructed and arranged to form a tack pocket in the meeting faces of said jaws, and means for positioning-the jaws to locate said pocket in line with said driver passage during the action of the driver.

30. In a machine of the class described, a driver, a tack block having a cylindrical recess and a driver passage eccentrically arranged with respect to said recess, jaws seated in said recess formed as sectors of a cylinder, means for normally holding adjacent faces of two of the sectors together, said faces being provided with grooves, and

--means for positioning the jaws with the grooves in line withthe driver passage.

31. In a machine of the class described, a tack block provided with a cylindrical recess, tack jaws mounted in said recess, each 7 jaw having a cylindrically curved face, two

- rectangular faces and two substantially sectoral faces, said rectangular faces being provided respectively with a pointed groove and a recess, and a spring having its ends seated in the recesses and adapted to force the grooved faces together whereby the grooves form 'a tack holding pocket.

32. ha machine for operating on shoes, a movably mounted tack block formed to control the direction in which a tack starts therefrom into the work, and a tack driver movable through the block to insert the tack and-also operating to impart to the block a movement by which the block changes the direction of the upper portion of the tack after the lowerporfion of the tack has penetrated the work.

33. A machine ofthe class described having, in combination, a driver, a movable tack block, and mechanism for operating the same, said mechanism having provision for movingthe tack block in a direction to bend the stem of the tack inwardly after the point of the tack has begun to enter the wor 34. A machine of the class described, having, in combination, a tack block carrier movable inwardly over a shoe, a tack block pivoted in the carrier and provided with a passage for the driver, a driver bar movable atan oblique angle to the normal direction of the passage in said block. and a driver connected to the bar and guided to enter the passage in the tack block when the driver bar is moved downwardly.

35. A machine of the class described, having, in combination, a pivoted tack bloc' provided with-a passage for the driver, an a driver movable at an oblique angle to the normal direction of the passage in the tack block and held normally with its lower end over the passage in the tack block and acting to move the tack block to bend the ingoing tack as the driver is forced through its passage in the block.

36. A machine for operating on shoes having in combination, a tack holder, a tack driver movable to insert tacks from the holder into a shoe bottom and leave them with their stems upstanding, and operating mechanism for moving the holder to present tacks to the work at the point at which they should be inserted and to bend the upstanding stems of tacks inwardly from the edge of the shoe bottom.

'37. A machine 'for operating on shoes having, in combination, a tack holder, a tack driver movable to insert tacks from the holder into a shoe bottom and leave them with their stems upstanding, and operating mechanism. for moving the holder to present tacks to the work at the point at which they should be inserted, said parts being constructed and arranged to cause the holder to bend inwardly from the edge of the shoe bottom the upstanding stem of a tack for the purpose described.

38. A machine for operating onshoes having, in combination, tack supplying mechanism, and tack inserting mechanism constructed'and arranged to drive upper securing tacks partially into the bottom of a shoe and leave their stems upstanding above the surface of the work and automatically to bend upstanding tack stems inwardly from the edge of the shoe.

39. A machine for operating on shoes having, in combination, tack bending means constructed and arranged to overlie the margin of a shoe bottom and toengage the upper portion of the stem of a partially driven tack located at a distance from the edge of the shoe and bend said stem farther inwardly from the edge of the shoe bottom whereby the upper material held by the tack may be tightened over the shoe edge, and operating means therefor.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ORRELL ASHTON.

Witnesses: I

ARTHUR L. Rnssn Emzanrrn C. COUPE. 

